Tank-hoop



.0; T. BARTLETT.

(No Model.)

TANK HOOP.

No. 417,381. Patented Dec. 1'7, 1889.

N. PETERS. PhulwLilhogrzphar. wuhingmn. Dvc.

UNITED STATES PATENT OFFICE.

COSAM TALLEYRAND BARTLETT, OF IVARSAV, NEIV YORK.

TAN K-HOOP.

SPECIFICATION forming part of Letters Patent No. 417,381, dated December17, 1889.

Application filed November 26, 1886. Serial No. 219,976. (No model.)

To all whom it may concern.-

Be it known that I, CosAM TALLEYRAND BARTLETT, residing at Warsaw, inthe county of Wyoming and State of New York, havcinvented certain newand useful Improvements in Tank-Hoops, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to hoops for large tanks, especially such tanksas are used for storing brine.

The object of the invention is to producea tank-hoop which shall be ohcap and of convenient application and which shall be durable.

Heretofore hoops for brine-tanks (which are generally composed of woodenstaves) have generally been made of flat orband iron, the meeting endsof the band being riveted or welded together, and the hoop was placedover the top of the tank and driven down to tighten the staves. A flathoop applied in this Way is generally strained most at the lower edge,toward the large end of the tank. As the tanks are often twenty feet ormore in diameter, it is difficult to apply such a hoop. As a very largesurface of such a hoop is exposed to the corrosive action of the brine,the hoop soon rusts away and must be frequently renewed. Tanks hoopedwith fiat hoops often burst, causing loss and damage. I

Instead of using a flat hoop, I use a hoop made of round, oval, orsimilar rods, so thata convex surface of said rods shall bear on thestaves; and I connect the ends of the rods is a plan of a modifiedcoupling-bar.

The letter A indicates the staves of the tank, which tank may becylindrical or tapering.

B indicates a hoop or hoop-section, preferably a round metallic rodabout one inch in diameter for large tanks. Oval or similar rods may beused; butI have found round rods to answer to best advantage. One end ofeach rod may be headed down, or both ends may have screw-threads andnuts applied.

0 indicates the coupling-bar, which is of malleable cast or wroughtiron, of crescent form, the inner face of the bar of such curve as toconform to the surface of the tank, the outer face of the bar having atleast one lug 1D, through which the rods B pass, said lug havingperforations for that purpose. The bar 0 also has two small bosses E,which are either notched or perforated for the passage of rods B.- Thebar C may have two lugs D, as in Fig. 8, one end' of a rod B passingthrough each and tightened, as shown.

The hoop is applied to the tank as shown in Figs. 1 and 7, the latterfigure indicating a hoop in three sections. The bar 0 is held tightlyagainst the staves so far as it eX- tends, and as the ends of the barare thin the rod passes firmly against the staves between thesecoupling-bars. The lugs E cause the coupling-bar to assume a horizontalposition against the staves. The round bar 13 bears against the hoopsmore uniformly than a flat band, and, as has been stated, is much moredurable than a flat band. The lugs E and the rods B serve to supporteach other, and the hoop can readily be tightened by turning up thenuts. The face of the lug D is preferably beveled, so that the nuts Willhave a fair bearing. \Vhile the ends of the rods are far enough removedfrom the tank to give freedom of movement in turning the nuts, the bodyof the bar 0 will firmly bear against the staves against which it rests,so that all the staves will be supported by the hoop.

I claim 1. In a tank-hoop, a coupler in crescent form having a bossprojecting from its face and provided with two openings, a rounded rod 5or rods separate from the coupler, detachably seated in said openings,and forming the main part of the hoop, said rod extending around thestaves and through the openings in the boss and bearin g on the horns ofthe crescentshaped coupler, and a nut on one end of said supporting orguide lugs E, all in combinarod bearing against the boss, all combinedtion, substantially as described. to substantially as described. Intestimony whereof I affix m y signature in 2. A tank-hoop consisting ofrounded bars presence of two Witnesses. 5 provided with nuts and acoupling-bar of O. TALLEYRAND BARTLET'J.

crescent form to fit the staves, said bar hav- Witnesses: ing on itsconvex face a perforated boss D, L. H. HUMPHREY,

through which the rods pass, and also having G. C. SCRANTON.

